Usmanova M.N., Raxmat B.A., and Abruyev SH.I. “HAYDOVCHILARNI TAYYORLASH TIZIMINI YANADA TAKOMILLASHTIRISH”. Journal of new century innovations 15, no. 3 (October 27, 2022): 148–153. Accessed October 30, 2024. https://newjournal.org/new/article/view/700.